Gas burner



NOV. 7, F G CRONE GAS BURNER Filed Oct. 16, 1951 3 Sheets-Sheet l NOV- 7, F G CRONE GAS BURNER Filed Oct. 16, 1931 5 Sheets-Sheet 2 Nov. 7, 1933. F. N; f 1,933,790

GAS BURNER Filed Oct. 16, 1931 V 3 Sheets-Sheet 3 Patented Nov. 7, 1933 UNITED STATES GAS BURNER Francis G. Crone, Buffalo, N. Y. 7 Application October 16, 1931. Serial No. 569,165

2 Claims. (o1. 158-404) This invention relates to a gas burner and more particularly to a gas burner adapted to be put into a furnace or other central heating plant for the purpose of heating homes or buildings although the invention can also be embodied in burners designed for use for other purposes.

In the installation of gas burners the size of the burner depends upon the amount of heating which is required. Thus for a very large home or oifice building a much larger capacity burner mustbe provided than would be required to heat a small home or building. To avoid the necessity of manufacturing and keeping on hand a large number of styles and sizes of gas burners, one of the principal objects of this invention is to provide a burner which is made up in sections so that where a larger burner is required, all that is necessary is to add moresections to the burner as compared with a smaller installation where a smaller amount of heat is required.

Another object is to provide such a sectional gas burner in which each individual section is so designed that it can be adapted to any type .or kind of installation, that is, in installations of round or square fire boxes or in fire boxes which are very large and require several gas pipes to supply the necessary amount of gas for maintaining the desired temperature in the building. Another object is to provide a baffle for the ffiames issuing from the burner jet which deflects the flames laterally to secure better combustion,

and to insure their igniting one from the other and also reduce the danger of the flames going out. Y

Other objects are to provide a gas burner which is extremely simple in its construction and can be provided at low cost, which is efficient in operation'and efiects the maximum amount of heat with a minimum consumption of fuel and in which the burnerwill remain in good working condition for a long period of time without requiring attention or repairs. 9 9

Another object is to provide a lug oneach of the burner sections so that each burner section is held spaced from the fire box wall and at the proper distance tosecure a proper play of the fiaine from each jet against the side of the fire ,b'ox'wall.

In the accompanying drawings:

Figure 1 is a perspective View of a domestic furnace showing the same broken away to disclose one form of my invention in which the gas burner is made up of a plurality of units or sections which are disposed in an annular arrangement around the sides of the fire box.

of burner embodying my invention.

PATENT OFFICE.- H

Figure 2 is a perspective view of the form of the manner in'which they can be used in a very large square or rectangular fire box..

Figure 4 is anenlarged sideelevation of the burner units shown in Figs. 1-3.

Figure 5 is a vertical, transverse section taken on line 5 -5, Fig. 4. i L

' Figurefi is a side elevation of-a modified form Figure 7 is a top plan view of the form of invention show-n in Fig. 6. I

Figures 8 and 9' are sections taken on the correspondingly numbered lines in Fig. 6.

Referring more particularly to the form of the inventionshown in Figs. 1-5 the numeral 10 represents a furnace such as are commonly used. in domestic heating and having a fire box 11 in which the gas burner is arranged. This furnace the 10 is shown as-being round and consequently has aroundfire box 11. g e

Where such a round fire box is encountered the burner units 12 are arranged'in-an annular.

row around the sides of the fire box 11 and are supplied with gas by means of radial pipes 13 which connect with a central two-part manifold 14, the halves 15 and 16 of which arelocked and each half is connected to a gas supply pipe 17. The pipes 13 are right hand threaded at one end and left hand threaded at the other, and the parts15, 16 and 12 correspondingly threaded so that upon turning the radial pipe 13, these parts are drawn together the proper distance. flow of; gas through each of these gas supply pipes 17 is controlled by a valve 18 each of which valves 18 connects the gas supply pipes with a gas main 19. It will be understood that the gas supply pipes 17 extend out through the usual clean-- out door oropening (not shown) provided in such furnaces for the cleaning out of, ashes and clinkers when the. same is being used as a coal furnace and that the burner as a whole can rest upon the usual grates provided for the operation of the furnace with coal.

The two halves 15 and 16 of the central manifold 14- are hollow and are preferably made of cast metal in semi-circular form so as to providea chamber which receives the gas from the gassupply pipe 17 and distributes it through The Y the radial branch pipes 13 which lead to the burner units 12. By making the central manifold 14 in two parts it is obvious that the burner can be very easily removed from the furnace since all that need be done to take out the burner is to separate the two halves 15 and 16 of the central manifold and break the connections between the manifold sections 15 and 16 and the gas pipe 1'7 whereupon each manifold section 15 and 16 can be removed through the furnace door together with the radiating pipes and burner units 12 connected with it. In order to hold the two halves l5 and 16 of the central manifold in proper position with reference to one another the two halves are preferably interlocked. For this purpose the straight side of the manifold section 16 is formed to provide a pair of vertical dovetail slots 20 which receive dovetail projections 21 on the other manifold section 15. It is apparent that when the dovetail projections on the manifold'section 15 are interlocked with the dovetail grooves in the manifold section 16 the two part manifold is in the form of a circular body and the burner units are held in exact circular arrangement so that each of those burner units 12 is held at the same distance from the sides of the fire box or water leg of the furnace.

Each of the burner units 12 is preferably constructed as follows: y

Each burner unit is made of a cast metal body 22 which includes a longitudinal inner wall 23 and a cylindrical hollow part 24 integrally formed with the wall 23. The ends of the tubular part 24 0f each burner unit are open and are threaded,'the threads at both ends'being right hand threads. When the burner units are assembled in the manner shown in Figs. 1 and 2 both of these ends are closed by plugs 25 so that they are completely sealed. The radial pipes 13 screw into threaded-opening 26 at the inner side and in the center of each burner unit 12, these openings 26 communicating with the interior of the cylindricalpart 24 of the-burner section.

Screwed into the upperside of each of the cylindrical-parts24 of each burner unit are a plurality of burner jets 29. These burner jets can be provided in any desired number and as shown six jets are provided for each of 'the burner units 12. Each of these jets is hollow and has a central orifice which permits the gas to pass from the cylindrical part 24 and discharge from the tip of each jet and air holes 30 are provided in each jet which mix the desired quantity of air with the gas stream flowing through each of the jets.

As the burning gas issues from each jet it is baffled by an inclined bafiie 31 which extends over each of the jets 29 of each burner unit 12. This bafile 31 is preferably made of-cast metal and has 'a depending flange 32 which is adapted to be secured to the upper side o'fthe wall 23 of each burner unit by means of bolts 33 or in any other suitable manner. The baffle 31 is also formed to provide an inwardly extending flange or shelf units. It is apparent that by this means the burner units can be spaced no more closely to the fire box than the lugs 36 will permit. It is also apparent that the baffles 31 not only prevent the gas from blowing out but also serve to more intimately mix the gas and air as it issues from the several jets, serve to deflect the burning stream of gas toward the fire box wall andalso serve to insure the ignition of one jet of gas from the other so'that only one jet need be lighted to insure the ignition of the entire burner.

In larger burner installations or in installations in a square or rectangular fire box the circular arrangement of the burner units 12 shown in Figs. 1 and 2 cannot, of course, be

employed. When the units are to be installed in a square or rectangular fire box the units 12 are supplied without the end plugs 25 and the units 12 are connected by short coupling pipes 40 which screw intothe open ends of the cylindrical portions 24 of the several-burner units 12 so that the burner unitsare arranged end to end as indicated in Fig. 3.

The units 12 are rectangularly arranged around the sides of the fire box (not shown) and at the corners'of the fire boxspecial units 12a are provided which are similar in all respects to the.

units 12 except that instead of being straight, theends of each of these units 12a are at right angles to one another. The majority of the burner units 12 are independently supplied with gas through branch lines 41 which connect with a manifold or main line 42. The corner units 12a are, however, supplied with gas through their connections 40 with the adjacent units 12 and where it is inconvenient to supply gas directly to any one of the units 12, such as is the case with the center unit 12 in Fig. 3, these units 12 can also'be supplied with gas through their connections 40 with the adjacent units 12. It will also be understood that the gas can be fed into the end one of a series of the units 12 thereby eliminating the piping 41 and 42.

' It is apparent from the foregoing that the burner unit shown in Figs. 1-5 isadapted for either round or rectangular fire boxes and also that they can be made up into burners having any desired capacity.

In theform of the invention shown in Figs. 6-9 the burner is supported on the gas supply pipe 45 which connects with, the bottom of a hollow cast metal body 46 which forms the manifold in which'th'e jets 47 are screwed. Any number of these jets may be provided and any number of rows may also be provided, these jets being shown in circular arrangement and one row being provided. These jets are similar to the jets shown in Figs. 1-5. In order to baffle the burning gas issuing from these jets 4'7 a plurality of posts 48 are mounted on the top of the burner head or manifold 46 and these posts 48 are slotted at their upper ends to receive a baflle ring 49. This baffle ring is formed to provide a plurality oflaterally deflected depending baffles which are staggered with reference to one another, one-half of the bafiles 50 being deflected inwardly or toward the center of the ring 49 while the alternate baiiies are deflected outwardly or away from the center of the ring 49. 'These baffles 50 are arranged so that they are disposed over each of the jets 4'7 and in close proximity thereto 50 that the burning gas issuing from the jets 47 is deflected laterally. These baffles, as in the preferred embodiment shown in Figs. 1-5, serve to more intimately mix the gas and air as they issue from the jets 4'7 and also serve to prevent the flame from each jet from blowing out. As in the preferred construction these bailies are removably connected to the body of the burner and are supported exclusively thereby, so that they are always held in the exact proper relation to the burner jets.

From the foregoing it is apparent that the present invention provides a jet burner in which the gas and air issuing from the jets is intimately mixed by a bafile which the flame strikes and that this baflie reduces the liability of this flame to blow out; this baffle is also removably attached to the burner body so that it can be easily removed in cleaning the jets or other parts of the burner and at the same time is so mounted that the battles are always held in proper relation to the jets; in the form of the invention shown in Figs. 1-5 a burner unit is provided which is built up of a plurality of similar units which are adapted to be arranged either in a circular or a rectangular fire box and in either arrangement are adapted to play against the sides of the fire box to secure the maximum heat transfer; and all forms of the invention are inexpensive to manufacture, can be easily installed and will operate with maximum efiiciency for a long time without getting out of order or requiring repairs.

I claim as my invention:

1. A gas burner comprising an elongated hollow body, means for admitting gas to said body, a plurality of burner jets arranged in a longitudinal row along said body and extending upwardly therefrom, means for mixing air with the gas passing through said jets, a wall formed integrally with said hollow body and extending upwardly therefrom at one side of said row of jets, a battle removably arranged at the upper end of said Wall and extending at an oblique angle over the open upper ends of and in line with said jets whereby the removal of said baiile permits of drilling and tapping the openings in said body for said jets and screw means securing said baffle to said wall, said bafile beingarranged close to the upper ends of said jets to deflect the burning streams of gas issuing from said jets laterally and upwardly.

2.,A gas burner comprising a central hollow tail groove and the other being formed to provide an integral cooperating dovetail projection fitting said groove, a gas supply pipe for each of said sections, a plurality of outlet pipes radiating from said manifold and a plurality of burner units secured to the outer ends of said outlet pipes.

FRANCIS G. CRONE. 

